Thermal Barrier Coatings for Shipboard Protection.

Abstract

It was found that thermal-sprayed cermet coatings on aluminum shipplate retard melting and degradation of the base metal. The thermal behavior of the Al2O3 and ZrO2 cermets was different and showed the best properties in the 20 and 50% (approximately) ceramic compositions respectively. There was no corrosion problem when the atomized Ni-Al was used. The cermet coatings adhered to the substrates under high plastic strains in excess of normal service conditions (assuming elastic criteria). A further investigation showed that acoustic emission techniques could readily detect coating detachment within the critical plastic deformation range of the aluminum substrate.

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Document Details

Document Type
Technical Report
Publication Date
Nov 07, 1986
Accession Number
ADA174291

Entities

People

  • H. Herman

Organizations

  • Stony Brook University

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Alloys
  • Barrier Coatings
  • Chemistry
  • Coatings
  • Materials
  • Materials Engineering
  • Materials Science
  • Measurement
  • Mechanical Properties
  • New York
  • Stresses
  • Substrates
  • Test Methods
  • Thermal Conductivity
  • Thermal Properties
  • Word Processors

Readers

  • Materials Science (Mechanical Engineering).
  • Surface Engineering/Surface Coating Technology.